3A5 are tiny DHT tubes. Is that an explanation why they are failing so much?
In the L7 Lampi, I can use 101ds, 2A3, 6A3, 300b, 45,VT52, 5b4g, etc and these seem way more robust (2.5v to 6.3v). It also seems like the bigger the tube the airier the sound. Rectis give even more rolling possibilities, as 5Y3, 5u4g,5R4, 274b, 422a, GZ34/37, 83v and 80 with adapters, U52, etc and they influence the sound enormously.
Tube rolling the Dac is loads of fun and one drawback of the Allnic is that you are stuck with the 3a5 as output tubes (2.8v). Can you at least roll the rectis?
In any case, I dont doubt that it sounds great. I would not pay much attention to the test bench report, as your ears will tell know all you need to know.
In the L7 Lampi, I can use 101ds, 2A3, 6A3, 300b, 45,VT52, 5b4g, etc and these seem way more robust (2.5v to 6.3v). It also seems like the bigger the tube the airier the sound. Rectis give even more rolling possibilities, as 5Y3, 5u4g,5R4, 274b, 422a, GZ34/37, 83v and 80 with adapters, U52, etc and they influence the sound enormously.
Tube rolling the Dac is loads of fun and one drawback of the Allnic is that you are stuck with the 3a5 as output tubes (2.8v). Can you at least roll the rectis?
In any case, I dont doubt that it sounds great. I would not pay much attention to the test bench report, as your ears will tell know all you need to know.